The most common cause of phrase server errors like that is prompts that have been deleted off the hard drive - sites will sometimes wander through the prompts looking for a particular one they don't like and then just delete it - this is bad as the phrase server is expecting those prompts to be there (you can replace them with a silent prompt - however that's not TAC supported).
At Unity startup time if any phrases are loaded that can't find all their prompts, errors will be logged - Unity will still come up however. But when you access a phrase that goes to pull that prompt you'll get a failsafe event like you're experiencing.
Look back in your application event log to the last time Unity came up and see if there are any phrase server errors in there...
I'm not able to access my old voice mail messages all of a sudden. The recording says something like 'the message is currently not available'. This has never happened before in all the years I have been using this system. I have t...
If you have 2 ISR routers, one acting as Failover, do we need to have both the same number of SRST licenses on the 2 routers?
No. You will only need the SRST licenses on the primary router. Because this feature...